the rate of work done or doing work is usually measured by the power of a machine .
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Answer:
pressure is equal to the net amount of force acting per unit area. Dimensional Formulae of force is M1L1T-2 and of area is L2. Therefore Pressure's dimension can be obtained by calculating Force by Area. Dimensional formula of pressure difference is M1L-1T-2.
The main danger is vehicles making u-turns or pulling out without signalling.
